About Grand Design Build · Toronto
Custom design and construction for the place you call home.
One team to coordinate design, permits, construction, handover and warranty support.
A clear contract price for your agreed scope, with allowances and exclusions explained.
Your home is designed specifically for your family, your property and the way you want to live.
View progress, schedules and updates in one place through your client portal.
View our licence and history in the Ontario Builder Directory. Current insurance documents available on request.
Experience across renovations, additions and new homes.
Who we are
We’re Grand Design Build, a residential design build company based in North York. Led by Allen Misaghi, we work with homeowners across Toronto and the GTA on major renovations, home additions, custom homes, garden suites and laneway houses.
Your routines, your priorities and your property shape the plan. We bring design, material selections and construction together so the finished home feels right for you.
Explore our completed work
What we build
Improve the layout, storage and flow of your whole home, including kitchens, bathrooms and shared living spaces.
Add the bedrooms, family space or second storey you need while staying in the neighbourhood you love.
Plan a custom home around your lot, natural light, daily routines and preferred finishes.
Make room for family or independent living with a garden suite or laneway house designed for your property.
See your selections in person
At our Avenue Road showroom, compare cabinetry, tile, stone, fixtures and finishes side by side. Our team helps you bring the selections for your renovation, addition or custom home together in one place.
Bring your ideas, drawings or inspiration photos. Explore materials that suit your style, the way you live and your project budget.
1558 Avenue Road, North York
Visits by appointment.
Homeowner reviews
Grand Design Build did a rear addition, second storey, and all our bathrooms on a house in the Beaches. March to September 2025. We were told end of September and moved back in the second week, so a bit ahead of schedule. Fixed price contract, and the final cost was exactly the contract number. That mattered a lot to us. We decided to change few items for bathrooms and kitchen halfway and there were no issues with the change orders, and the pricing was really fair even though a fixed contract was signed. There were no pushback. The office project coordinators and the site supervisor were really helpful the entire way through. They also kept the site tidy for six months straight and our neighbours never once complained. Respectful crew. Recommend them.
Allen and his team were a dream to work with. Truly an amazing experience and an incredible condo full renovation. The work was top notch and Allen was excellent to work with, respecting our ideas and desires and making our renovation dream a reality.
I had a really good experience working with Grand Design Build on my home renovation and rear addition project. Their team was professional, knowledgeable, and easy to work with throughout the process. They took the time to understand our needs, offered helpful suggestions along the way, and also provided complimentary interior design support, which was a great added value. They were responsive and attentive to questions as they came up, and the project stayed on track from start to finish. I would recommend Grand Design Build to anyone looking for a reliable custom build and design company in Toronto.
Grand Design Build did a great job on our renovation. Their team was organized, kept us informed through each step, and also delivered quality work. They were reliable with timelines and very clear about costs and materials. Overall, we had a very smooth experience with them. Highly recommended!
Grand Design Build exceeded every expectation we had. From the very first consultation, they were professional, transparent, and truly passionate about their work. If you’re considering custom home building in Toronto, you won’t find a more reliable and talented team. Our new home is stunning, and the attention to detail is second to none. We are so grateful for their dedication and highly recommend them.
Grand design build are a master in custom home building in Toronto for sure. They designed and built our place just exactly how we wanted it. They are very reliable when it comes to communication and planning.
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